James Dean(2001) [James Dean]: Killed in a car accident. (Thanks to Shollum)

Tristan + Isolde(2006) [Tristan]: Stabbed in a swordfight with Mark Strong; he dies shortly afterwards while talking to Sophia Myles. (Thanks to Shollum)

Spider-Man 3(2007) [Harry Osborn a.k.a. New Goblin]: Stabbed in the back with his own Goblin-glider by Topher Grace, when James throws himself in front of Tobey Maguire to save him. He dies shortly afterwards as Tobey and Kirsten Dunst kneel by his side. (Thanks to Anton, Andrew, Fortza, Shollum, and Hunter)

Milk(2008) [Scott Smith]: Dies (off-screen) of AIDS-related illness; his death is mentioned in the on-screen text at the end of the movie. (Thanks to Anne and Tommy)

The Green Hornet(2011) [Danny 'Crystal' Clear]: Killed in an explosion, along with everybody else in the nightclub, when Christoph Waltz detonates a suitcase bomb he had left in the club. (Thanks to Tommy and ND)

The Iceman(2012) [Marty Freeman]: Shot in the throat and chest by Michael Shannon. (Thanks to ND)

Spring Breakers(2012) [Alien]: Shot in the head by one of Gucci Mane's men as James, Ashley Benson, and Vanessa Hudgens are storming Gucci's mansion. His body is shown again later on as Ashley and Vanessa pay their respects. (Thanks to Matthew, Tommy, Gilbert, Tim, and ND)